MAX1639ESE

Product Overview

• Category: Integrated Circuit (IC)
• Use: Power Management
• Characteristics: High-efficiency, low-power, step-up DC-DC converter
• Package: Small Outline Integrated Circuit (SOIC)
• Essence: Voltage regulator
• Packaging/Quantity: Tape and Reel, 2500 units per reel

Specifications

• Input Voltage Range: 2.5V to 16V
• Output Voltage Range: 4V to 28V
• Maximum Output Current: 600mA
• Switching Frequency: 500kHz
• Efficiency: Up to 95%
• Operating Temperature Range: -40°C to +85°C

Pin Configuration

The MAX1639ESE has a total of 16 pins. The pin configuration is as follows:

1. VOUT
2. SW
3. GND
4. FB
5. COMP
6. SS/TRK
7. EN
8. VIN
9. AGND
10. PGND
11. SYNC
12. RT
13. CT
14. UVLO
15. OCSET
16. SS/TRK

Functional Features

• High efficiency conversion of input voltage to output voltage
• Low power consumption
• Step-up DC-DC conversion
• Adjustable output voltage
• Overcurrent protection
• Undervoltage lockout
• Soft-start and tracking functions
• Synchronization capability with external clock signal

Advantages and Disadvantages

Advantages: - High efficiency leads to reduced power consumption - Wide input and output voltage range allows for versatile applications - Compact package size enables space-saving designs - Overcurrent protection ensures safe operation - Soft-start and tracking functions improve system reliability

Disadvantages: - Limited maximum output current may not be suitable for high-power applications - Synchronization capability may not be required in all applications

Working Principles

The MAX1639ESE is a step-up DC-DC converter that efficiently converts a low input voltage to a higher output voltage. It utilizes a switching regulator topology to achieve high efficiency. The device operates by rapidly switching an internal power transistor on and off, controlling the energy transfer from the input to the output.

The input voltage is connected to the VIN pin, and the output voltage is obtained from the VOUT pin. The feedback (FB) pin is used to set the desired output voltage using external resistors. The COMP pin is used for compensation purposes to stabilize the control loop. The EN pin enables or disables the device, while the SS/TRK pin controls the soft-start and tracking functions.

Detailed Application Field Plans

The MAX1639ESE is commonly used in various applications where efficient step-up voltage conversion is required. Some of the typical application fields include:

1. Battery-powered devices: The MAX1639ESE can be used to boost the battery voltage to power components that require a higher voltage, such as LCD displays, audio amplifiers, and wireless modules.

2. Portable electronic devices: It can be employed in portable devices like smartphones, tablets, and digital cameras to increase the voltage level for specific subsystems or peripherals.

3. Industrial automation: The MAX1639ESE finds applications in industrial automation systems where low-power sensors or actuators need a higher voltage supply.

4. Automotive electronics: It can be utilized in automotive applications to convert the low-voltage battery power to higher voltages required by various subsystems, such as infotainment systems, lighting, and motor control.

Detailed and Complete Alternative Models

1. LT1308: A similar step-up DC-DC converter with adjustable output voltage and high efficiency.
2. LM2621: Another step-up DC-DC converter offering a wide input voltage range and adjustable output voltage.
3. TPS61220: A compact step-up converter with low quiescent current and high efficiency.
4. ADP1612: An integrated boost converter with a wide input voltage range and adjustable output voltage.

These alternative models provide similar functionality to the MAX1639ESE and can be considered as alternatives based on specific application requirements.

In conclusion, the MAX1639ESE is a high-efficiency, low-power, step-up DC-DC converter used in various applications. Its compact package, adjustable output voltage, and protection features make it suitable for battery-powered devices, portable electronics, industrial automation, and automotive electronics. Alternative models such as LT1308, LM2621, TPS61220, and ADP1612 offer similar functionality and can be considered as alternatives.